Microwave and Hot Filament Deposition
We manufacture Microwave CVD systems for R&D and production, and we are the worldwide distributor for sp3 Hot Filament CVD systems. Our systems are used for making diamond films, CNT and other advanced material applications for R&D and industrial diamond coating.

Worldwide Research and Industry Cooperation
Seki cooperates with researchers and industry, worldwide, to provide optimal solutions uitilizing the advantages of Microwave and Hot Filament technologies.

Systems for R&D and Production
Seki's Microwave CVD systems and sp3 Hot Filament CVD systems are your number one choice for research and production diamond coating. These systems offer high reliability, flexible advanced process capabilities, and low cost of ownership. We are proud of our reputation in providing Microwave CVD systems to support advanced diamond and carbon materials research in leading unversities and research institutions around the world.

Used in both R&D and production, the sp3 Hot Filament CVD system provides high quality, uniform diamond coatings for piece parts such as tools as well as large areas including 300mm wafers for electronics applications.


Read more about Microwave Plasma Reactors

Read more about Hot Filament Reactors

November 2010
Seki is now distributor for EDP diamond for high quality single crystal diamond substrates

February 18, 2009
Seki Technotron teams with Blue Wave Semiconductors to distribute single wafer Hot Filament CVD System for R&D

November 20, 2008
sp3 Diamond Technologies Introduces New CVD Diamond Deposition System for Doped Diamond Applications

September 30, 2008
Seki Technotron Corporation delivers a new Model AX6300 1.5kw Microwave Plasma CVD System with enhanced recipe capability for advanced diamond film development.

June 24, 2008
sp3 Diamond Technologies Receives Multiple Orders for Hot Filament CVD Diamond Deposition Tool

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Upcoming Tradeshows


2011 MRS Spring Meeting and Exhibit
Visit us at Booth #516
April 25 - 29, 2011
Moscone West Convention Center
San Francisco, California
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Applications of our microwave and hot filament systems include:

• Single crystal diamond
• Carbon nanotubes
• Diamond films for MEMS

• Diamond substrates for electronics
• Electrodes for electrochemistry
• Thermal management

• Diamond windows
• Wear surfaces and seals
• Cutting tools